I've had my share of mispronunciations but I usually correct myself right away, even if I have to say something two to three times to get it right. I did this recently, saying anesthesiologist while thinking anesthetist and it all came out a jumble. But hey, at least they're related words.
To refresh your vocabulary...
Big difference. He kept saying it in the context of calling in all the troops in an emergency situation, to send in the cavalry to assist in battle. All I could think about was Jesus dying on the cross and how he wasn't going anywhere, let alone come to my aid if I was somehow cornered and defenseless against a violent patient.